functionParent.addBefore(newLine(), added);
functionParent.addAfter(newLine(), function);
PsiElement parent = first.getParent();
parent.addBefore(ErlangElementFactory.createExpressionFromText(getProject(), bindingsS + signature), first);
parent.deleteChildRange(first, last);
}
private PsiElement newLine() {
return ErlangElementFactory.createLeafFromText(project, "\n");
}